使用 java.net.InterfaceAddress 獲取網卡信息

import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;

public class NetworkParameterDemo {
  public static void main(String[] args) throws Exception {
    Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
    while (en.hasMoreElements()) {
      NetworkInterface ni = en.nextElement();
      printParameter(ni);

}

}
public static void printParameter(NetworkInterface ni) throws SocketException {
    System.out.println(\" Name = \" + ni.getName());
    System.out.println(\" Display Name = \" + ni.getDisplayName());
    System.out.println(\" Is up = \" + ni.isUp());
    System.out.println(\" Support multicast = \" + ni.supportsMulticast());
    System.out.println(\" Is loopback = \" + ni.isLoopback());
    System.out.println(\" Is virtual = \" + ni.isVirtual());
    System.out.println(\" Is point to point = \" + ni.isPointToPoint());
    System.out.println(\" Hardware address = \" + ni.getHardwareAddress());
    System.out.println(\" MTU = \" + ni.getMTU());

System.out.println(\"\\nList of Interface Addresses:\");
List<InterfaceAddress> list = ni.getInterfaceAddresses();
Iterator<InterfaceAddress> it = list.iterator();

while (it.hasNext()) {
  InterfaceAddress ia = it.next();
  System.out.println(\" Address = \" + ia.getAddress());
  System.out.println(\" Broadcast = \" + ia.getBroadcast());
  System.out.println(\" Network prefix length = \" + ia.getNetworkPrefixLength());
  System.out.println(\"\");
}

}
}</pre>